From: Malcolm Walker <>
>>>. Capacitors and
>>>coils are similar beasts (sort of)
Well sorta...A capacitor stores an electrical charge, a coil doesn't. A
capacitor blocks DC, a coil blocks AC; hence the coil's ability to provide a
"kick back" HV charge, due to inductive reacatance. Combining the coil
(actually wired as a step up transformer) with a capacitor in parallel they form
an R-C circuit which has a resonant frequency, at which there will appear to be
minimal resistance. This R-C circuit is used in the dizzy to provide a good HV
spark, the capacitor reducing ringing.
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